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VB.NET Imaging - ISSN Barcode Image Reading

How to Detect ISSN Barcode Image in VB.NET Imaging Application

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VB.NET ISSN Barcode Recognition Control
This VB.NET ISSN (International Standard Serial Number) barcode reader control add-on is a robust and thread-safe .NET solution, which is developed to help VB.NET developers integrate accurate and fast ISSN barcode reading and scanning features into document management system or image capturing application. This VB.NET ISSN barcode reader SDK is extremely easy to use, which can be integrated into any VB.NET developing applications by adding reference.
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This VB.NET ISSN barcode reader control offers APIs for developers to decode & read ISSN barcode from image files, like png, jpeg, bmp, gif and tiff. Besides, it can be also used to detect and recognize ISSN barcode from document files, like PDF and Word.
Here, to help you have a better grasp of the fast and advanced barcode reading technologies that this VB.NET ISSN barcode reader control has used, we arrange this online tutorial page in following ways.
  • Benefit list of this VB.NET ISSN barcode scanner control toolkit
  • Overview of VB.NET ISSN barcode reader SDK dlls
  • VB.NET demo code for ISSN barcode scanning from image file
  • VB.NET sample code to decode & recognize ISSN barcode image from PDF file
  • VB.NET demo code to detect & read ISSN barcode image from Word document file
VB.NET ISSN Barcode Reader Control Features
  • Professional ISSN barcode reader plug-in that is written in fully managed C# code
  • Able to detect all ISSN linear barcodes from partial or whole target document image file by VB.NET code
  • The number of detected ISSN barcodes can be calculated in VB.NET class application
  • Offer unique functions to speed up the ISSN barcode reading rate by VB.NET code
  • The decoded information of ISSN barcode can be exported as data string using VB.NET
  • Mature VB.NET ISSN barcode scanner component that is compatible with .NET Framework 2.0 (or greater versions)
VB.NET ISSN Barcode Scanner SDK DLLs
This VB.NET ISSN barcode scanning control compacts fundamental barcode detecting and reading functions into two core dlls, which are RasterEdge.Imaging.Basic.dll and RasterEdge.Imaging.Barcode.Scanner.dll. If you want to read ISSN barcode image from source PDF file, RasterEdge.Imaging.PDF.dll will be also needed. If you want to decode ISSN barcode image from target Word document, RasterEdge.Imaging.MSWordDocx.dll will be used as well.
Apart from this VB.NET barcode reader control add-on, RasterEdge .NET Imaging SDK also contains other mature document or image processing add-ons. And all those .NET add-ons can be integrated and used in VB.NET class application together. For instance, coupled with VB.NET document image processor, this VB.NET ISSN barcode scanner control add-on can also do some basic image editing functions while reading ISSN barcode from source image file.
Read ISSN Barcode from Image in VB.NET
By default, this VB.NET ISSN barcode reader control will decode ISSN barcode from source image file by scanning the whole image. But, if the ISSN barcodes are located in a relatively concentrated area of source image file, you can also direct the barcode reader to scan this defined area only. The area can be accurately located by the application of X & Y location in VB.NET class application.
Besides, if you know the number of ISSN barcodes on this source image file, you can also activate the maximum barcode detecting function.
Public Shared FolderName As String = "c:/"

Private Sub button1_Click(sender As Object, e As EventArgs)
Dim fileName As String = FolderName & "SampleBarcode.tif"

Dim datas As String() = BarcodeScanner.Scan(fileName, BarcodeType.ISSN)

For Each data As String In datas
Debug.WriteLine(data)
Next
End Sub
Decode ISSN Barcode from PDF in VB.NET
The VB.NET ISSN barcode recognition from one page PDF file works in the same way with that of common raster image file. As for the multi-page PDF file, you are allowed to locate one PDF page and let the reader decode ISSN barcode from that selected document page by VB.NET code.
Public Shared FolderName As String = "c:/"

Private Sub button1_Click(sender As Object, e As EventArgs)
Dim fileName As String = FolderName & "Sample.pdf"

Dim reImage As REImage = DirectCast(REFile.OpenDocumentFile(fileName, New PDFDecoder()).GetPage(0).ToImage(), REImage)

Dim datas As String() = BarcodeScanner.Scan(reImage, BarcodeType.ISSN)

For Each data As String In datas
Debug.WriteLine(data)
Next
End Sub
Scan ISSN Barcode from Word in VB.NET
All those ISSN barcode scanning and reading features that are used in PDF barcode decoding application are all compatible with VB.NET Word document processing applications.
Public Shared FolderName As String = "c:/"

Private Sub button1_Click(sender As Object, e As EventArgs)
Dim fileName As String = FolderName & "Sample.docx"

Dim reImage As REImage = DirectCast(REFile.OpenDocumentFile(fileName, New DOCXDecoder()).GetPage(0).ToImage(), REImage)

Dim datas As String() = BarcodeScanner.Scan(reImage, BarcodeType.ISSN)

For Each data As String In datas
Debug.WriteLine(data)
Next
End Sub


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